Where to see if H!B is till valid or not?

USA H1B Visa
1

Hi,

I have visa stamped until 2019. I left my job with US employer and came to India one month back. Now if I want to go back, where could I see if my H!B visa is still valid pr not? I checked in USCIS check status with petition number. It shows the old status as approved. Is that enough to see if my visa is still valid?

Thanks

Devi